feat: multimodal image clients, workspaces, Tushare skill, test fixes

- Replace monolithic image_message_client with HTTP/OCR/legacy modules; tighten OpenAI transport + tool schemas for multimodal downgrade to OCR specialist path.
- Add image/stock workspace prompts (META/SOUL/ROLE_SYSTEM); register experts; tweak specialist agent/direct loop/query_image_attachment.
- Add bundled runtime/skills/tushare-finance (references, api_client, SKILL metadata).
- Document OCR-related env vars; admin chat tweaks; README; weixin_install Ensure-OfficialPluginRuntimeDeps helper.
- Tests: multimodal downgrade + OCR coverage, strict tool pairing in attachment replay guard, workspace contract skips _internal/_system dirs, router/trace/prompt guards.

Co-authored-by: Cursor <cursoragent@cursor.com>

runtime/skills/tushare-finance/reference/接口文档/每日筹码分布.md

@@ -0,0 +1,113 @@
+# 每日筹码分布
+
+**文档ID**: 294
+**原始链接**: https://tushare.pro/document/2?doc_id=294
+
+---
+
+## 每日筹码分布
+
+接口：cyq_chips描述：获取A股每日的筹码分布情况，提供各价位占比，数据从2018年开始，每天18~19点之间更新当日数据来源：Tushare社区限量：单次最大2000条，可以按股票代码和日期循环提取积分：5000积分每天20000次，10000积分每天200000次，15000积分每天不限总量
+
+输入参数
+
+<table>
+<thead>
+<tr>
+<th>名称</th>
+<th>类型</th>
+<th>必选</th>
+<th>描述</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>ts_code</td>
+<td>str</td>
+<td>Y</td>
+<td>股票代码</td>
+</tr>
+<tr>
+<td>trade_date</td>
+<td>str</td>
+<td>N</td>
+<td>交易日期（YYYYMMDD）</td>
+</tr>
+<tr>
+<td>start_date</td>
+<td>str</td>
+<td>N</td>
+<td>开始日期</td>
+</tr>
+<tr>
+<td>end_date</td>
+<td>str</td>
+<td>N</td>
+<td>结束日期</td>
+</tr>
+</tbody>
+</table>
+输出参数
+
+<table>
+<thead>
+<tr>
+<th>名称</th>
+<th>类型</th>
+<th>默认显示</th>
+<th>描述</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>ts_code</td>
+<td>str</td>
+<td>Y</td>
+<td>股票代码</td>
+</tr>
+<tr>
+<td>trade_date</td>
+<td>str</td>
+<td>Y</td>
+<td>交易日期</td>
+</tr>
+<tr>
+<td>price</td>
+<td>float</td>
+<td>Y</td>
+<td>成本价格</td>
+</tr>
+<tr>
+<td>percent</td>
+<td>float</td>
+<td>Y</td>
+<td>价格占比（%）</td>
+</tr>
+</tbody>
+</table>
+接口用法
+
+```
+pro = ts.pro_api()
+
+df = pro.cyq_chips(ts_code='600000.SH', start_date='20220101', end_date='20220429')
+
+```
+
+数据样例
+
+```
+         ts_code trade_date price percent
+0    600000.SH   20220429  8.96    0.56
+1    600000.SH   20220429  8.94    0.40
+2    600000.SH   20220429  8.92    0.34
+3    600000.SH   20220429  8.90    0.32
+4    600000.SH   20220429  8.88    0.27
+..         ...        ...   ...     ...
+995  600000.SH   20220418  7.26    0.01
+996  600000.SH   20220418  7.24    0.01
+997  600000.SH   20220418  7.22    0.01
+998  600000.SH   20220418  7.20    0.01
+999  600000.SH   20220418  7.18    0.01
+
+```